Pilot for gas-burners.



Patented July 16, 1918.

MICHAEL' M;DILUGHIO, 0F WILMINGTON,.DEIJAWARE.

'PILOT non GAS-BURNERS;

Speeication of IiettersPatent.

. Batenteaanly 1.6, 1918.

Application ieavnovember ai 1917.' sel-iai No. 201x117.'

To all whom t may concern:

Beit' known that l, MioHAnn M. yDin-nonno,

a citizen of the United States, residing. at

'Yilmington, in the county of'New Castle Vand State ofk Delaware, haveinvented ceracter whiehwill prevent tlie breaking ofthe mantle when the'burner iis ignited" the pilot.

Another object of this invention is the provision of the ignited end ofthe pilotforming an integralstructnre"of the' mantle support, so thatthe mantlel will be' ignited from the interior instead of from theexterior, thereby obviating the breaking of' the mantle caused by theexplosion producedby the ignition of the same from the exterior as nowcustomary. i

A further object of this invention is the provision of a pilot for gasburners of the above stated character, which shall be simple, durableand eiiicient, and which may be manufactured and sold at a comparativelylow cost.

With these and other objects in view as i will become more apparent asthe description proceeds, 'the invention consists in certain novelfeatures of construction, combination and arrangement of parts, as willbe hereinafter more fully described and claimed. f

F or a complete understanding of my invention, reference is to be had tothe following description, and accompanying drawing, in which Figure 1is a vertical sectional view of a gas burner illustrating my inventionapplied thereto Fig. 2 is a fragmentary vertical sectional viewillustrating the ignited end of the pilot forming an integral structureof the mantle support,

Fig. 3 is a fragmentary vertical sectional vview of a coupling usedin'connection with the supply pipe of the pilot,

Fig. 4 is a modified form of the same, Fig. 5 is a perspective view of amember for detachably connectingN the supply pipe of the pilot` tothemantle support.

Referring' in detail tol the` drawing, the numeral 1l indicates thecasing of the' gas 'burner' having mounted therein the usual supply p'ipe provided with controlling valves andai; TheotlicrA` end of' the gassupply p-ipeis enlarged as illnstratedat; 5

and internally threaded v as illustrated at' (3 for the pnrpo'seofhaving a mantle support 7 threaded thereto.- rPhemantle'support 7 isconstructed;from, in amolding"process, a y

plasticcomposition, and has formedl thereon a mantlel supporting` rimv Sfor snp-porting the -nsnazlimrntl'e 9 that is constructed fromforaminonsmateriali ihen'iantle support 7 when'being-'moldedis formedwith a'vertical `passage IOtha't' terminates ina nipple 1l. 'The' nipple11 forms an'iiit'eg'nal4 portion ofl the'vr mantle support and extendsdownwardly and inwardlyI forming4A the" igniting end of the pilot. Thevertical pas- ,sa'gelO'at-"its other`end`terminates in a liorizontalbranch opening outwardly through the side of the mantle support. Acylindrical member 12 is internally screw threaded and positioned in thehorizontal branch of the passage 10 and has formed upon its inner end aplurality of retaining fingers 13 that are embedded within the mantlesupport 7 when molding the same so as to retain the cylindrical member12 within the horizontal branch. A pipe 14 is threaded into thecylindrical member and has its other end threaded into an elbow 15. Theelbow 15 has threaded thereto a gas feed pipe 16 that extends upwardlythrough the casing and has slidably'mounted thereon a sleeve 17.Interposed between the sleeve 17 and the pipe 16 is a packing 18 toestablish an air tight connection therebetween, but which will permitthe sleeve 17 to be moved or slid upon the pipe 18 when desired. A.curved pipe 19 connects with the gas feed Pipe 2 at a point adjacent thecontrollino' valve 4 and has its other end disposed within the sleeve17. A packing 20 is disposed between the pipe 19 and the sleeve toestablish an air tight connection but which will permit a slidingmovement yof the sleeve 17 upon the pipe 19.

If desired, the pipes 18 and 19 may be provided with screw threads asillustrated in Fig. 4, which threads run in opposite directions to bethreaded in engagement with a Vsleeve 21 that isinternally threaded inthe opposite direction for the purpose of cooperatingwith the threadsupon the pipes 18 and 19 providing means whereby'the pipes pipe'lt maybe iirst threaded to the cylindrical member 12 and the elbow 15 thenthreaded thereon. The pipe 16 may then be threaded to the elbow 15 andconnected to the pipe 19 as shown in either of the Figs. 3 or el.

From the foregoing,` description taken in connection with theaccompanying drawing, it will be noted thatrthe ignited end of the pilotforms an integral structure of the mantle support So thatt is disposedwithin the mantle 9 whereby upon igniting the burner, the gaswill beignited from the interior of the mantle instead of from the exterior ofthe mantle asknow customary upon all well known gas burners. Byigniting'the mantle from the interior thereof it obviates the vdanger ofbreaking the same as, if the mantle becoming 4ignited will break thesame.

While I have shown and Vdescribed the Y Vpreferred embodiment of myinvention, it

will beunderstood that minor changes in of parts Ymay be made, withoutdeparting from the spirit and scope of the invention as claimed. f

Having thus described my invention7 what I claim is. Y Y

1. A Ypilot` for gas burners comprising a Vmantle support having apassage formed vcylindrical member, an elbow threaded to said pipe, afeed ipe threaded to the elbow, a sleeve detaehagly'connected to thefeed pipe, and a curved pipe connected to the main gas feed pipe of agas burner and de n tachably connected t0 the sleeve.

Y 2Q A gasburner comprising` a `mantle support haif'ing a maincentrally. located gas passage and an auxiliary passage extendingparallel therewith, a nipple formed on the .mantle support and ineon'nnunication with the auxiliary passage, and means lsupplying l gasto the auxiliary passage. Y s n In testimony whereofl affix mysignatureAV in presence of two witnesses, Y

i/noHAnLV M. innuendo,

Witnessesz Y HORACE GREELEY EAsfrnUnN,

BARNET STUCKMAN.

VCopies of this lpatent may berobtainred-for ive cents each, byaddressing the Commissioner of Patents,

' Washington, D. C.

